I'm actually considering purchasing a tablet-like laptop or something in the future, or even a Cintiq-like device, to replace my Bamboo, and I want to use it with Ubuntu because I don't trust Windows. So I kind of bumped into this video here and thought the interface was pretty cool and artist-friendly. Thought it might serve as a great inspiration for Krita's own tablet interface, which I'd love to use in the future.

https://www.youtube.com/watch?v=N4a9YrFhMT4